『The Web Development Podcast with Fexingo: Frontend, Backend, and Modern Web Stack』のカバーアート

The Web Development Podcast with Fexingo: Frontend, Backend, and Modern Web Stack

The Web Development Podcast with Fexingo: Frontend, Backend, and Modern Web Stack

著者： Fexingo
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The Web Development Podcast with Fexingo is Lucas and Luna's weekly exploration of the modern web stack, from frontend frameworks to backend infrastructure. Each episode dissects a specific technology or workflow — think React Server Components vs. traditional SSR, the economics of cloud-native databases, or the practical trade-offs of a micro-frontend architecture — with real benchmarks and open-source case studies. Lucas, a former full-stack engineer turned journalist, asks the hard questions about developer productivity and deployment costs, while Luna, a senior architect in a high-traffic fintech org, brings battle-tested insight into scaling and maintainability. Their conversations avoid hype: no breathless takes on the latest framework until they've stress-tested it against production data. The listener is a working developer (mid-level to senior) who needs to make informed decisions about tooling, architecture, and team practices. Expect arguments backed by numbers — like Redis vs. Memcached under 100K QPS — and candid postmortems of real outages. You'll leave each episode with a sharper mental model of the web's moving parts, and maybe a new library to try. But Lucas and Luna won't sell you a silver bullet; they'll hand you a weighted decision tree. #WebDevelopment #Frontend #Backend #React #NodeJS #TypeScript #CloudComputing #DevOps #API #Database #Performance #OpenSource #SoftwareEngineering #Tech #FexingoBusiness #BusinessPodcast #Technology #DeveloperProductivity Keep every episode free: buymeacoffee.com/fexingo© 2026 Fexingo. All rights reserved. 経済学
エピソード
  • Why Your React App Renders Twenty Times on First Load

    Why Your React App Renders Twenty Times on First Load
    2026/06/06
    Lucas and Luna break down a common performance trap in React applications: excessive re-renders on initial page load. They trace the problem from a developer's console warning about 22 renders in under two seconds to the root cause — misuse of useEffect and stale closure patterns. Using a concrete example of a dashboard app fetching three unrelated API endpoints, they show how improper state batching and missing dependency arrays cause cascading re-renders that bloat render time from 200 milliseconds to nearly four seconds. The episode walks through React 18's automatic batching, the difference between urgent and non-urgent updates, and a practical migration path from useEffect to useSyncExternalStore for data subscriptions. Lucas references a real-world case where a SaaS team cut initial render count from 37 to 4 by splitting one component into three micro-components and switching to React Query for caching. Luna adds a note on React DevTools profiler output and how to interpret the flame graph's 'why did this render' tags. The conversation ends with a forward-looking note on React Forget, the compiler that aims to automate memoization in React 19. #React #ReactPerformance #ReRenders #useEffect #React18 #React19 #ReactForget #useSyncExternalStore #WebPerformance #Frontend #JavaScript #ReactDevTools #StateBatching #StaleClosures #ReactQuery #Memoization #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo
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    8 分
  • Why Your Monorepo CI Pipeline Runs Twice as Slow with NPM Workspaces

    Why Your Monorepo CI Pipeline Runs Twice as Slow with NPM Workspaces
    2026/06/06
    Episode 34 of The Web Development Podcast with Fexingo dives into a subtle but costly performance trap in monorepo setups: NPM workspaces' dependency hoisting logic that silently duplicates installs across CI cache layers. Lucas breaks down a real-world case where a 15-package monorepo's CI pipeline took 11 minutes per build—almost double what it should be—because npm's hoisting algorithm didn't play well with GitHub Actions' cache keys. He walks through the exact `npm ls` commands to detect the duplication, explains why pnpm's content-addressable store avoids the problem entirely, and shares a minimal `node_modules` traversal script to validate your own hoisting. Luna pushes back on whether the switch to pnpm is worth the migration cost, and Lucas offers a pragmatic middle path: pinning cache keys to the lockfile hash and using `--install-strategy=nested` to force local installations. The episode ends with a concrete checklist for any team running a monorepo on NPM today. #Monorepo #NPMWorkspaces #CIPipeline #DependencyHoisting #GitHubActions #CacheKeys #Pnpm #NodeModules #npmLs #Lockfile #InstallStrategy #BuildPerformance #DevOps #WebDev #Technology #FexingoBusiness #BusinessPodcast #WebDevelopmentPodcast Keep every episode free: buymeacoffee.com/fexingo
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    11 分
  • Why Your Database Indexes Are Slowing Your Queries

    Why Your Database Indexes Are Slowing Your Queries
    2026/06/05
    On this episode of The Web Development Podcast, Lucas and Luna dig into a counterintuitive database performance trap: the index that looks helpful on paper but quietly degrades your write throughput and even some reads. Lucas walks through a real-world case from a mid-size e-commerce platform where adding a composite index on order status and created_at made the nightly batch job run 40 percent slower. They explain how B-tree depth, index selectivity, and write amplification interact, and why a multi-column index that seems perfect for a query can actually force the database to scan more pages than a full table scan. Luna shares a story about a PostgreSQL query planner choosing a bitmap scan over a perfectly good single-column index because the statistics were stale — and what the team did to fix it. They also cover practical tips for monitoring index bloat, using pg_stat_user_indexes, and knowing when to drop an index entirely. If you've ever added an index and seen no improvement, or worse, a regression, this episode is for you. #DatabasePerformance #PostgreSQL #Indexing #QueryOptimization #WebDev #Technology #FexingoBusiness #BusinessPodcast #Backend #SQL #BTree #WriteAmplification #IndexBloat #pgStatUserIndexes #CompositeIndex #BitmapScan #EcommerceBackend #DatabaseTuning Keep every episode free: buymeacoffee.com/fexingo
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    8 分
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